The IRS does not let you take a loss on your personal residence. Say you bought at $1.5M and you think it is worth $1.1M now but the local government won't lower your property tax. They claim it is still $1.5M, or maybe they'll give in and say $1.4M.
So then can you start a rental, rent it for say 1 to 2 years, then sell it. The basis for depreciation will be the lower of cost of FMV, and FMV will be what the property tax bill says -- publication 527 says "If you are not certain of the fair market values of the land and the buildings, you can divide the cost between them based on their assessed values for real estate tax purposes." So the basis is $1.5M or $1.4M -- although you depreciate only the structure. Then when you sell a year or year and a half later at $1.1M you have a huge business loss that might even generate a NOL.
Does this sound like a valid strategy?